I have recently installed Windows XP Pro SP2. Whenevr I try to run any .exe file I get the following error: Windows cannot access the specified device, path, or file. You may not have the appropriate permissions to access the item. I read some where that if we right click on the file and in Properties->Security click the unblock option, this problem is solved but this is not working for me as I dont get Security tab in Properties.Please help!! Due to this I am not able to install any software in my computer

are you logging into an Administrator account ? If not, login as an administrator and try again. Add further information here, as you try various things.
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cometbillJan 7 '10 at 10:11

Yes I am login as administrator
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PiaJan 7 '10 at 10:17

I also read somewhere another solution as follows: Open Internet Explorer. In Tools option select Internet Options->Security Tab, select Internet and then Custom Level option. In security settings under miscellaneous section enable the option named Launcing applications and unsafe files. It works in some cases, but unfortunately not for me :(. Help...
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PiaJan 7 '10 at 10:30

Yes Pekka,I installed SP2 on top of my previous installation. And I face this problem for any setup file(eg gtalk setup or media player setup any)
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PiaJan 7 '10 at 10:55

2 Answers
2

go into the Console and click on Virus
and Spyware Control. Then click on
Suspicious software alarm system, go
to the exception list and allow
explorer.exe or any other common files
that might have been denied.

If you're not using Trend Micro, I would still advice to turn off all firewall and antivirus, and try again.

None of the solutions worked for me. So I uninstall my antivirus(which was an exe file ofcourse, if I saved it on my harddisk and then try to run it I got the same error, so I run it directly without saving). And now I no more get the windows error and can atleast execute any exe file. The first thing I m gonna do now is install a proper antivirus!!! :)